Thanks @Donna Marie and @prabhu for this thread & discussion! ( @SatyamArora , I agree with your suggested improvement). When I did this course I was under the impression that the 'Solution Architect' intended us to leverage the line item "Safety Stock Exception Count" (line item created previously in the section "INV01 Module Line Item Formula Details"). But another trainee, @HansNorman , pointed out to me the discrepancy -- the course tells us to set the Safety Stock Exception Count based on the Ending Inventory being < the Safety Stock Target, whereas the objective of this conditional formatting is that we highlight the Beginning Inventory red if it is less than the target inventory. Usually the Solution Architect is good at telling us what line items are needed, even if we need to figure out the formulas, so I would think the intent is to leverage what we have. But Sorna, maybe you're right - this time we should create an additional line item to avoid this discrepancy.